Multiple Choice
Earth wire or ground wire is made of:
A) copper
B) aluminium
C) iron
D) galvanized steel
Correct Answer:
Verified
Correct Answer:
Verified
Q15: While testing cables the galvanometer used should
Q16: The damping force acts on the moving
Q17: Instrument transformers are<br>A)potential transformers<br>B)current transformers<br>C)both (a) and
Q18: The pointer of an indicating instrument should
Q19: Systematic errors are<br>A)instrumental errors<br>B)environmental errors<br>C)observational errors<br>D)all of
Q20: Swamping of resistance is used to compensate
Q21: The gravity controlled instrument has crowded scale
Q23: A moving iron ammeter coil has few
Q24: An ammeter is a<br>A)secondary instrument<br>B)absolute instrument<br>C)recording instrument<br>D)integrating
Q25: For handling greater currents induction wattmeters are